Error: Access blocked: Your institution’s admin needs to review Panel

Error: “Access blocked: Your institution’s admin needs to review Panel”

If you cannot sign in to K12Panel with your Google credentials and receive this message, Google’s third-party access controls are blocking Panel and a Google administrator needs to approve it.

Why This Happens

Google continues to tighten the default security around third-party tools. Your organization may need to explicitly grant Panel permission again so it can continue to sign you in and sync with your Google Workspace.

If you expect Google Cloud Sync to be working, confirm it: open your Cloud Sync settings and check that the last Google sync completed successfully within the last 24 hours. If it did not, follow the steps below. Until this permission is set correctly, Panel will not sync new users and Chromebooks from Google.

How to Grant Panel Access

• Sign in to the Google Admin console at admin.google.com.
• Go to Security → API Controls (admin.google.com/ac/owl).
• Open Manage Third-Party App Access.
• Click Add App → OAuth App Name Or Client ID.
• Search for this OAuth Client ID:
  75537849717-gemo50922g78v0b793i6hfdkp7spd8hb.apps.googleusercontent.com
• Grant all org units access to Panel, set the app to Trusted, and click Finish.

Once approved, sign in again. If sync was affected, it will resume on the next scheduled run, or you can trigger an immediate Cloud Sync refresh.

Common Questions

Who can fix this?
A Google Workspace administrator with access to the Admin console’s API Controls.

What Client ID do I search for?
75537849717-gemo50922g78v0b793i6hfdkp7spd8hb.apps.googleusercontent.com

Will this also fix stalled syncs?
Yes. The same block stops Cloud Sync; approving Panel lets new users and Chromebooks sync again.

How do I confirm sync is healthy?
In Cloud Sync settings, verify the last successful Google sync was within the last 24 hours.